“We did the testing, and the results were… Internally, I was fine. These are what the neurologist calls external issues. They’re job-related.

“As much as anything it’s sleep deprivation. That’s my No. 1 problem. It’s job-related, so a lot of it is stress. Some of it is I don’t work out as much as I should. I have been lately. Some of it could be diet.

“But like [neurologist Ki Jung] told me, 85 percent of this is I’ve gotten older, and I’m trying to sleep like I did when I was 45.”